From a rectangular sheet measuring `84 cm` by `24 cm`, how many discs of radius 4 cm can be cut out?

If the length of the circular cylinder made , of metal is 20 cm and its radius is 4 cm. How many, spheres of radius 2 cm can be made by melting this ?

What is the radius of a sphere having volume and surface area are equal numerically. How many small spheres of radius. '1 cm' can be made by melting that metallic spheres?

A box of Halwa was bought for a Wedding party. The length of the Halwa is 25 cm , breadth is 18 cm and height is 16 cm . If the halwa is cut into small pieces measuring 4 cm xx 3 cm xx 2 cm how many pieces we will get?

A metallic sphere of radius '4 cm' is melted and recast. How many small spheres of radius '1 cm' will get from it?

The length breadth and thickness of a rectangular sheet of metal are 4.234m , 1.005m and 2.01cm respectively. give the area and volume of the sheet to correct significant figures.

A rectangle sheet of tin with adjacent sides 45 cm and 24 cm is to be made into a box without top, by cutting off equal squares from the corners the folding up the flaps. Taking the side of the square cut off as x, express the volume of the box as the function of x.

An rectangle sheet of tin with adjascent sides 45 cm and 24 cm is to be made into a box without top, by cutting off equal squares of side x from the corners the folding up the flaps. For what value of x, the volume of the box will be maximum.

Find the degree measures of the angle subtended at the centre of a circle of radius 100 cm by an arc of length 22 cm (usepi=22/7)